Application of Walter Grimme, Werner Keil and Heinrich Schmitz

WORLEY, Chief Judge.

This appeal is from the decision of the-Board of Appeals of the United States. Patent Office affirming the rejection by the Primary Examiner of the single-claim of appellants’ application for a. patent on penicillin salts of amino salicylates. The appealed claim reads:

“1. As a new chemical compound, a penicillin salt of an amino-salicylate having the general formula:

in which HX is penicillin in the form of its acid: R3 is a radical containing not in excess of 10 carbon atoms and selected from the group consisting of hydrogen, alkyl, and phenylalkyl radicals: and A is a…